美国莱斯大学的Qianfan Xu博士应我所杨林研究员邀请，将于2010年8月30日来我所学术交流，并在“黄昆半导体科学技术论坛”上作第133期报告，望相关领域的各位老师及同学积极参加!

报告题目: Silicon Micro-ring Modulators for Large-scale Optical Interconnections

报告时间: 2010年8月30日(星期一)下午3：00

报告地点: 中国科学院半导体研究所学术沙龙室

报告人: Dr. Qianfan Xu (Rice University, USA)

Abstract：Recent progresses in the field of silicon photonics have enabled large-scale and monolithic optoelectronic integration on chip. One major application of this technology is optical interconnections, which will have profound impact as the performance of computers is increasingly limited by the bandwidth and power consumption of the interconnection systems. A compact, low-power, high-speed and CMOS-compatible electrooptic modulator is the key component for an optical interconnection system. In this talk, I will show a micron-size electrooptic modulator based on the free-carrier dispersion effect in silicon micro-ring resonator with a modulation speed over 10 Gbit/s. I will present a new modulator design based on coupled-ring resonators. I will also present a coupler design that can efficiently couple light between a sub-micron-wide silicon waveguide on chip and a multi-micron-wide polymer waveguide on board.

报告人简介：Dr. Qianfan Xu is an assistant professor of the Department of Electrical and Computer Engineering at Rice University. His research interest is in the area of silicon nanophotonics and optoelectronics. Before joining Rice in 2008, he was a research associate at Hewlett-Packard Labs. He received his Ph.D. degree in Electrical and Computer Engineering from Cornell University in 2007 and his B. Eng. and M. Eng. degrees in Electronic Engineering from Tsinghua University in 1999 and 2002. Dr. Xu has published over 30 papers in peer-reviewed journals, which includes Nature, Nature Physics, Nature Photonics, and Phys. Rev. Lett. His papers have total citations of over 1800.

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